using RaceFields.CameraSystem;
using RaceFields.Damage.VehicleDamage;
using RaceFields.UI.HUD;
using RaceFields.Vehicles;
using UnityEngine;

namespace RaceFields.GameFlow
{
    public sealed class SelectedVehicleSpawner : MonoBehaviour
    {
        [SerializeField] private Transform spawnPoint;
        [SerializeField] private GameObject fallbackVehiclePrefab;
        [SerializeField] private bool destroyExistingVehicles = true;

        private void Start()
        {
            GameObject prefab = GameSelectionState.VehiclePrefab != null ? GameSelectionState.VehiclePrefab : fallbackVehiclePrefab;
            if (prefab == null)
                return;

            if (destroyExistingVehicles)
                DestroyExistingVehicleControllers();

            Transform targetSpawn = spawnPoint != null ? spawnPoint : transform;
            GameObject vehicle = Instantiate(prefab, targetSpawn.position, targetSpawn.rotation);
            AssignCameraTarget(vehicle.transform);
            AssignDamageHud(vehicle);
        }

        private static void AssignCameraTarget(Transform vehicle)
        {
            BuggyFollowCamera followCamera = FindAnyObjectByType<BuggyFollowCamera>();
            if (followCamera != null)
                followCamera.SetTarget(vehicle, true);

            RearViewMirrorCamera rearViewCamera = FindAnyObjectByType<RearViewMirrorCamera>();
            if (rearViewCamera != null)
                rearViewCamera.SetTarget(vehicle, true);
        }

        private static void AssignDamageHud(GameObject vehicle)
        {
            VehicleDamageController damageController = vehicle.GetComponentInChildren<VehicleDamageController>();
            if (damageController == null)
                return;

            VehicleDamageHud damageHud = FindAnyObjectByType<VehicleDamageHud>();
            if (damageHud != null)
                damageHud.Bind(damageController);
        }

        private static void DestroyExistingVehicleControllers()
        {
            ArcadeBuggyController[] existingVehicles = FindObjectsByType<ArcadeBuggyController>(FindObjectsInactive.Exclude);
            for (int i = 0; i < existingVehicles.Length; i++)
            {
                if (existingVehicles[i] != null)
                    Destroy(existingVehicles[i].gameObject);
            }
        }
    }
}